Oenothera elata Kunth
Family: Onagraceae
Hooker's evening primrose,  more...
Oenothera elata image
Patrick Alexander  
Dietrich et al. 1997
Duration: Perennial Nativity: Native Lifeform: Forb/Herb General: Erect biennial to short-lived perennial with taproot, forming rosette; stems 4-25 dm tall, green, flushed with red below or entirely red, branched or unbranched; pubescence variable, from densely stiff hairs, to some longer appressed hairs, to sparse glandular-puberulent. Leaves: Dull green to gray green with white veins, sparsely to densely stiff hairs, rosette 10-43 cm long, 1.2-4 cm wide, narrowly oblanceolate to oblanceolate, base narrowed to petiole; cauline leaves 4-25 cm long, 1-2.5 cm wide, narrowly oblanceolate to elliptic, sessile or short petiolate, margin bluntly dentate to subentire. Flowers: Unbranched inflorescence, flowers at acute to obtuse angle to stem; hypanthium 3-5 cm long, 1.2-1.8 mm in diameter, yellow or flushed with red with variable pubescence; sepals 2.7-5 cm long, 4-8 mm wide, yellowish green, red-striped or flushed with red; petals 3-5.5 cm long, 3-5.3 cm wide, yellow to pale yellow, broadly ovate. Fruits: Capsules 2-6.5 cm long, tapering upward, narrowly lanceolate, seeds reddish-brown in 2 rows in each cell. Ecology: Found in along streams, in meadows, rocky slopes or scree, or in other distrubed habitats from 2,000-9,000 ft (610-2743 m); flowers June-October. Notes: Polymorphic species throughout the west. In our region there are two subspecies: subsp. hirsutissima and subsp. hookeri. The former is sparsely villous, with the stem exclusively strigillose, mature buds are narrowly lanceolate, with conspicuous free tips of the capsule valves; this plant can also grow quite large. The latter will always be flushed with red, usually with long-villous red-pustulate hairs, usually smaller than the former. Ethnobotany: Used as a ceremonial emetic, as a cold remedy, for sores, swellings, mumps, as a life medicine, as a yellow dye, as a good luck charm, and a means to repel snakes. Etymology: Oenothera is from Greek oinos, wine and thera, to imbibe, while elata means tall. Synonyms: None, but the subspecies have many, see Tropicos Editor: SBuckley, 2010
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Max Licher  
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Tony Frates  
Oenothera elata image
Max Licher  
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Frank Rose  
Oenothera elata image
Max Licher  
Oenothera elata image
Tony Frates  
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Ries Lindley  
Oenothera elata image
Patrick Alexander  
Oenothera elata image
Patrick Alexander  
Oenothera elata image
Patrick Alexander  
Oenothera elata image
Patrick Alexander  
Oenothera elata image
Ries Lindley  
Oenothera elata image
Patrick Alexander  
Oenothera elata image
Patrick Alexander  
Oenothera elata image
Patrick Alexander  
Oenothera elata image
Patrick Alexander  
Oenothera elata image
Patrick Alexander  
Oenothera elata image
Patrick Alexander  
Oenothera elata image
Patrick Alexander  
Oenothera elata image
Reina-Guerrero, A.L.  
Oenothera elata image
David Thornburg  
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